Glenn Matfin obtained his medical education in the UK and USA. He has been a clinician-educator-researcher specializing in General Medicine, Diabetes and Endocrinology for over 30 years (including being a Visiting Investigator at NIH, USA; Senior Physician, Joslin Diabetes Centre, Harvard Medical School, USA; and Medical Director, WHO Collaborating Center for Diabetes, International Diabetes Center and Mayo Clinic, USA). He has made important contributions to diabetes research and translation in the UK, USA and internationally. This includes being an ongoing investigator in the landmark study in type 1 diabetes (DCCT/EDIC); Type 1 Diabetes Exchange Clinic Network; EMPA-REG outcome studies; and the LEADER studies. He has also published widely including editorial roles with the BMJ Education group, Lancet Diabetes and Endocrinology, Therapeutic Advances in Endocrinology and Metabolism (Founding Editor-in-Chief), and Journal of the Endocrine Society; and several textbooks (e.g. Endocrine and Metabolic Medical Emergencies, published by the US Endocrine Society and Wiley, 2018). He also received a Harvard Medical School Academy Center for Teaching and Learning Excellence in Tutoring Award in 2011, for his teaching on the undergraduate medical student course, Harvard Medical School, Boston, USA.